using System;
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using System.Windows.Forms;
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using System.Text.RegularExpressions;
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using System.Collections.Generic;
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namespace LB_VisionControls
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{
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public partial class FindForm : Form
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{
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bool firstSearch = true;
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Place startPlace;
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FastColoredTextBox tb;
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public FindForm(FastColoredTextBox tb)
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{
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InitializeComponent();
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this.tb = tb;
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}
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private void btClose_Click(object sender, EventArgs e)
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{
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Close();
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}
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private void btFindNext_Click(object sender, EventArgs e)
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{
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FindNext(tbFind.Text);
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}
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public void FindNext(string pattern)
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{
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try
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{
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RegexOptions opt = cbMatchCase.Checked ? RegexOptions.None : RegexOptions.IgnoreCase;
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if (!cbRegex.Checked)
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pattern = Regex.Escape(pattern);
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if (cbWholeWord.Checked)
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pattern = "\\b" + pattern + "\\b";
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//
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Range range = tb.Selection.Clone();
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range.Normalize();
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//
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if (firstSearch)
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{
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startPlace = range.Start;
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firstSearch = false;
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}
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//
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range.Start = range.End;
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if (range.Start >= startPlace)
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range.End = new Place(tb.GetLineLength(tb.LinesCount - 1), tb.LinesCount - 1);
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else
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range.End = startPlace;
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//
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foreach (var r in range.GetRangesByLines(pattern, opt))
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{
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tb.Selection = r;
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tb.DoSelectionVisible();
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tb.Invalidate();
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return;
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}
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//
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if (range.Start >= startPlace && startPlace > Place.Empty)
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{
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tb.Selection.Start = new Place(0, 0);
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FindNext(pattern);
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return;
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}
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}
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catch { }
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}
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private void tbFind_KeyPress(object sender, KeyPressEventArgs e)
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{
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if (e.KeyChar == '\r')
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{
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btFindNext.PerformClick();
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e.Handled = true;
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return;
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}
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if (e.KeyChar == '\x1b')
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{
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Hide();
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e.Handled = true;
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return;
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}
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}
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private void FindForm_FormClosing(object sender, FormClosingEventArgs e)
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{
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if (e.CloseReason == CloseReason.UserClosing)
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{
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e.Cancel = true;
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Hide();
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}
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}
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protected override void OnActivated(EventArgs e)
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{
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tbFind.Focus();
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ResetSerach();
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}
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void ResetSerach()
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{
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firstSearch = true;
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}
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private void cbMatchCase_CheckedChanged(object sender, EventArgs e)
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{
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ResetSerach();
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}
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}
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}
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